Surfacing-roll.



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- F. R. ALLEN.

SURFAGING ROLL.

APPLIGATION FILED 00121, 1903.

Patented Sept. 14, 1909,

2 SHEETS-SHEET 2.

/NVENoH FREDRALLEN.

v Nro/mfr UNITED sTATEs PATENT oEEIoE.

ERED R. ALLEN, OP PROVIDENCE, RHODE IsLAND, AssICNoR To UNITED STATES FLOOR SUREACINC- MACHINE COMPANY, OP PROVIDENCE, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.

SURFACING-ROLL.

Specification of Letters Patent.

Patented Sept. 14, 1909.

Application led ctober 1, 1908. Serial No. 455,739.

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To all whom it may concern:

Be it known that I, FRED It. ALLEN, a citizen of the United States, residing at the city of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Surfacing-Rolls, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to surfacing rolls and has for its object to'provide a roll of simple, practical and inexpensive construction adapted to engage both ends of the abrasive or polishing material, draw the same tightly around and securely fasten the ends of said material within the roll and retain the whole firmly in that position while the roll is being operated.

A. further object of the invention is to so construct the roll that the covering may be applied and removed quickly kby unskilled hands, without the loss of time.

In carrying out my invention I have provided a supporting shell in which is mounted a pair of corrugated rotatable gripping and binding jaws, the same being adapted to engage both ends of the surfacing material to draw it tightly around the roll, and means are provided for Securely locking said jaws in position while the roll is in operation.

With these and other objects in view, the invention consists of certain novel features of construction, as will be more fully described and particularly pointed out in the appended claims.

In the accompanying drawings: Figure 1 is a plan view of the roll Showing its driving gear and the diagonal slot cut through the shell. Fig. 2 is an end view of said roll showing the meshing segments which serve to keep the grip jaws in time with each other.' Fig. B is a central sectional end view on line 3 3 of Fig. 1. Fig. is a detail in perspective of one of the spiders in which the jaws are rotatably mounted. Fig. 5 is a section on line 5 5 of Fig. 2 showing the jaws in section, the arrangement of their bearings and the bolt for tightening and locking the jaws in position. Fig. 6 is a perspective view of the jaw which has the longitudinal rib. Fig. 7 is a perspective View of the jaw that is provided with a longitudinal slot into which the surfacing material is pressed and gripped by the rib of the opposite jaw. Fig.

8 is a perspective view of the key which is lised for operating the jaws and the locking olt.

Referring to the drawings, 1 designates a comparatively thin tubular shell which may be made of commercial steel tubing or any other suitable material, said shell being slotted at 2 through its surface for the purpose of admitting the ends of the surfacing material after the same has been wrapped around said shell, to be retained therein in the manner hereinafter described.

In order to form center bearings through which the shaft may pass for Supporting the roll I have provided a pair of spiders, see Fig. 4, with hubs 4, (but one long hub may be employed having two sets of arms if desired). These two spiders contain a plu- Irality of radially projecting arms 5, the

outer ends of which arms are adapted to engage the inner surface of the shell 1 and be secured thereto by means of retaining Screws 6 6, see Fig. 2 which pass from the outside of the shell through and are threaded into said arms. Two of these arms 7 and 8 in each spider or set are provided with bosses 9 and 91L and 10 10, see Fig. 5, bosses 10 10 being for the purpose of receivingv the pin 11 on which the jaw 12 is adapted to rotate while bosses 9 and 9- are for the purpose of receiving the bolt 13, one end of said bolt being threaded at 14 through the boss 9a which is for the purpose of binding and locking the jaw 15 through which it passes.

Jaw 12, see Fig. 6, is notched out or recessed in its back edge' at 16 and 17 to receive the corresponding bosses 10 10 on the arms 8 of the spiders. The face of this jaw is provided with a longitudinal rib 19 which is adapted to engage and grip the surfacing material. The opposite jaw 15, see Fig. 7, is similarly notched or recessed at 20 20 to engage the corresponding bosses 9 9a in the arms 7. The face of this latter jaw is provided with a longitudinal groove 2Oa against which the rib 19 on the opposite jaw binds and retains the surfacing covering. These jaws are geared together to work in unison with eachother by means of the meshing toothed segments 21 and 22 which are attached to the outer end of each. These jaws are held in their respective positions within the shell between the bosses of the spiders, jaw 16 being retained by the pivot pin 11 to which pin it is secured by means of the cotter pins 12S-18, while jaw 15 is retained to swing freely `on the threaded pin or bolt 13 so that by inserting the operating key 22, see Fig. 8, onto the Vhead 23 both jaws are operated in unison and when said jaws are turned'into the desired posis tion the key is removed from bolt 11 and inserted onto the head 24 of bolt 13, whereby said bolt is set up tightly binding jawliV against itsbosses 9 and 9a, securely'holding both jaws in position.

A driving' gear 25 is niounted on to the outwardly projecting' hub t.

The operation of this device may be more fully described as follows: It is found in practice to be a very economical, practical and efficient construction to form the center bearings and supporting arms independent of the shell and secure the shell'thereto by screws or other suitable means. By this method of construction the shell may 'be removed and the jaw bearings fitted up and the aws mounted therein and put in operative condition `before this, the operating mechanism, is placed within the shell. A weight 2G is secured to the interior of the shell diameti'ically opposite Ythe said jaws to balance the weight of the same so that the roll will iun smoothly when rapidly revolving.

It is found in practice very advantageous to apply a flexible or yielding cushioning material to the surface of the roll, such as pile carpeting oi the like, around whichv the surfacing sheet is Wrapped, the ends of said material being passed down through the slot 2 in the face Vof the roll and between the gripping jaws. The key is then placed on the head 23 and said jaws are turned toward each other, the longitudinal rib n 1 9 engaging' the ends of said material and pressing and binding it firmly into the corresponding groove in the opposite jaw, at the same time pulling or drawing it tightly around the roll and placing the same under considerable tension; The key is then removed from the'head 23 and placed on head 24 when by setting up this screw the aw 15 is bound tightly in position securing both jaws and preventing them from turning backward until released by the loosening of the bolt 13.

' The device is extremely simple andpractical in construction, inexpensive to build and very efficient in its operation.

Having thus described my invention, what Iclaiin as new and desire to secure by Letand ters Patent, is: f

1. In a surfacing roll, a surfacing covering on said roll, a pair of jaws pivotally held within said roll, means in said jaws for engaging and binding said covering 'between them and drawing the saine tightly around the roll when said jaws are rotated, means for causing said jaws to rotate simultaneously and'frictional means forlockin-gjsaidV iaWS- t 2. In a surfacing roll, a surfacingcover- .ing on said roll, a pair of jaws, pivot bolts Y.on which said jaws are mounted, means in sa-idejawsfor engaging and binding Vsaid covering `between them and drawing the saine tightly around the roll when said jaws -are rotated, means for rotating said jaws,

means for causing said jaws to rotate simul taneously, and Ameans whereby one ofsaid pivot bolts Ymay be 4caused tobind and hold said jawsvby friction to retain the tension on saidV coveringzj- Y y f 3. Ina surfacing roll, a surfacing covering on said roll, a'pair of rotatable jaws within said roll, ajlongitudinal Yrib onrone jaw, thevopposite aw being provided with a corresponding groove into whichV said rib is adapted'to force the covering when the same is 'engagedv betweensaid' jaws, 'means for rotating said jaws to draw inward or release' said covering,'intermeshing gear teeth for causing said jaws to -work in unison, and

frictional means for locking'said jaws.

4t. In a surfacing roll, a surfacing covering on saidroll, a pair ofjaws, pivot bolts on which said jaws are mounted, a longitudinal rib on one jaw,rthe opposite jaw Vbeing provided with a corresponding groove Vinto which said rib is adapted to force the covering when the same 'is` engaged Vbetween said jaws, means `-for rotating'said jawsto draw inward or release said'covering,`intermesh ing gear teeth for causing said aws to work in unison, and means whereby one of said pivot bolts may be caused to bind and khold' said jaws by friction to retain thetension on saidcovering.' Y p 5. A surfacing roll comprising a shell pro-v vided with a slot therethrough, a center bearing provided with armsand formed ,in-` dependent of and attached to said shell, a pair of jaws pivotally hungin said arms, the saine being set beneathV and parallel with said slot, means in said jaws for engaging and binding said material anddrawing the same tightly around the roll when said jaws are rotated, andjmeans for locking said j aws to retain the tension on the"covering.' l

6. A surfacing roll comprisinga shell provided with ajslot therethrough,`a center bearing provided with arms andformed independent of and attachedto said shell,-a pair ofjaws, pivot bolts in said arms onvwhich said jaws are mounted, `said being set beneath and parallel with said slot, means in said jaws for engaging and bindingV saidV means'for causing said jaws to rotate simuli-Y taneously, and means wherebv'on'e of said pivot bolts may be set up to vbindland hold iio said jaws by friction to retain the tension on said covering.

7. A surfacing roll comprising a shell provided with a slot therethrough, a center 5 bearing provided with arms and formed independent of and attached to said shell, a pair of jaws, pivot bolts in said arms on which said aws are mounted, said jaws being set beneath and parallel with said slot, a longitudinal rib on one jaw, the opposite jaw being provided with a corresponding groove into which said rib is adapted to force the covering when the same is engaged between said jaws, means for rotating said jaws to draw inward or release said covering, intermeshing gear teeth for causing said jaws to work in unison, and means whereby one of said pivot bolts may be caused to bind and hold said jaws by friction to retain the tension on said covering.

In testimony whereof I affix my signature in presence of two witnesses.

FRED R. ALLEN. Witnesses:

FREDERIC A. GREENE, E. I. OGDEN. 

